#include <stdio.h>

int main ()
{
	int  *ptr = NULL;
	printf("The address in ptr is: %p\n", ptr);
	int i=100;
	ptr = &i;
	printf("The address in ptr is: %d\n", *ptr);
	*ptr = 50000;
	printf("The address in ptr is: %d\n", *ptr);
	printf("The value of i is: %d\n", i);
	return 0;
}


